From a specially crafted C header file, this Perl script can generate all necessary (resource file, header, and function) stubs for creating an Igor Pro XOP.
See the file example-header.h for an example input file, the output is in the files functionBodys.cpp, functions.cpp, functions.h, functions.rc and functions.r.
Requirements: A recent version of Perl and utags from https://ctags.io.
Call the script as ./xop-stub-generator.pl example-header.h.